4m Thermowood Barrel Sauna

DescriptionSave on our 4m Thermowood Barrel Sauna — a complete sauna package with your choice of premium heater included. Limited time offer while stocks last.4m Thermowood Barrel SaunaOutdoor Barrel Sauna | Complete Sauna Package | Wood Fired & Electric Heater Options | Seats 6-8Experience the authentic warmth and relaxation of a traditional wood fired sauna with our 4m Thermowood Barrel Sauna. Designed to provide a spacious and comfortable sauna experience, this model offers a perfect balance between generous seating and efficient heating — and with a range of door, window, glazing, heater and lighting options, you can configure it exactly the way you want. With a maximum internal sauna volume of approximately 10.36m³ or 13.76m³ for the larger diameter model (based on the full cabin length with the optional changing room omitted), the barrel design allows the sauna to heat up quickly while maintaining excellent heat circulation throughout. Opt to keep the standard changing room and the sauna space reduces accordingly — still beautifully usable, just with that dedicated dry-changing zone. The curved structure promotes natural airflow, helping groups looking to enjoy a traditional sauna experience in their own garden.Choose Your DiameterAvailable in two diameters to suit your space and preference:Ø 1.97m — the compact option, perfect for tighter garden spacesØ 2.27m — the larger option, giving extra headroom and a more spacious feelFloor Plan & DimensionsPlan your space with confidence — here’s the full floor plan and elevations for the 4m Thermowood Barrel Sauna:Dimensions shown for the Ø1.97m model. Ø2.27m also available — please contact us for the larger floor plan.Built-in Changing Room — Standard, but OptionalYour 4m barrel sauna comes from the factory with a built-in changing room as standard — perfect for getting changed in comfort, hanging your robe and keeping your essentials dry. But if you’d prefer to maximise your sauna space, you can choose to omit the changing room at no extra cost — giving you the full 3.4m of cabin length and the larger volume quoted above.Just let us know your preference at checkout or get in touch when ordering.Premium Thermowood ConstructionBuilt from 46mm Thermowood pine staves — heat-treated for exceptional durability, dimensional stability and resistance to the British weather. Thermowood is the gold standard for outdoor saunas, offering:Superior weather and moisture resistanceReduced shrinkage and warpingA beautiful, warm honey colour that ages gracefullyLong-lasting performance with minimal maintenanceYour Free Premium Bundle — Included as StandardEvery 4m Thermowood Barrel Sauna comes with everything you need to start enjoying it straight away — no hidden extras:Sauna heater of your choice (see options below)Sauna stonesStainless steel chimney (for wood-fired heaters)Wooden bucket & ladleThermometer / hygrometerWooden back restsFinnish bitumen shingle roofInternal lightingSturdy treated timber support cradlesSelect Your Perfect Choice of HeaterSimply select your preferred heater from the options depending on your preferred use & preference. We’ve hand-picked five crowd-pleasing options — easy to use, easy to install and fool-proof:Harvia M3 — Traditional, Tried & Tested Wood Burning Sauna HeaterHarvia M3 SL — Externally fed version of the M3, great for commercial operation & keeping it clean & tidy insideHarvia Spirit — Modern Electric Heater with Harvia ReliabilityHUUM Drop — Designer Electric Heater (smart-app compatible)HUUM HIVE Flow Mini — Compact Elegant Wood Fired Heater with Huge Stone CapacityHarvia M3 — Wood BurningHarvia M3 SL — Externally FedHarvia Spirit — ElectricHUUM Drop — Designer ElectricCustomise Your Sauna�� Shingle ColourChoose from five finishes for your Finnish roofing shingles:RedGreyGreenBlackWooden shingles (premium upgrade)�� Door StyleStandard wooden door with windowWood-framed glass door with lockFrameless tempered glass door�� Front Wall GlazingNo windowsTwo small windows in the front wallPanoramic glass front wall�� Rear Wall GlazingMake the most of your garden view from inside the sauna:No windowsTwo small windows in the rear wallHalf-glass panoramic rear wall — a stunning half-circle of tempered glass that floods the cabin with natural light while keeping the lower bench area private (as featured in our customer photos)Full-glass panoramic rear wall — uninterrupted garden views from inside the sauna, complete with safety fence�� Bench LayoutStandard layout: two straight benches running down either side with the heater positioned centrally at the far endWrap-around layout: benches joined across the rear wall with the heater sunk into the bench arrangement — a beautifully modern look (electric heaters only — wall-mounted or freestanding; log fired heaters must be side mounted for safe operation)�� LED LightingAdd atmospheric lighting to your sauna with a sauna-rated LED kit:White LED — clean, soft and traditionalColourful (RGB) LED — set the mood with your choice of colourSmart control with HUUM — if you choose a HUUM electric heater, you can control both your lighting and your heater from a single app or control panelDimmer with remote available for non-electric heater setups, or a simple switch if you preferFinnish Roofing ShinglesAll of our barrel saunas are finished with high-quality Finnish roofing shingles, designed specifically for the demanding conditions of Nordic climates. These shingles offer excellent weather protection, long-lasting performance and a clean, traditional finish that complements the natural Thermowood beautifully.Delivery & InstallationYour barrel sauna will be delivered & Installed by our professional installation team. Lead times are typically 6–8 weeks from order and our team will deliver in large Sprinter type vans. For delivery only you will be contacted for preferred delivery type, whether palletised for forklift unloading, assembled for HIAB crane or forklift unloading or by Crane delivery if required and arranged. Full assembly instructions are included, and most customers complete the build in a weekend with two people.Looking for a specific configuration that isn’t listed above? Give us a call or drop us an email — bespoke specifications are available on request.